<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>text-shadow文字阴影</title>
    <style>
        .box1 {
            /* 
            没有扩展大小 + inset
            */
            font-size: 40px;
            font-weight: bold;
            text-shadow:10px 10px 10px red;
        }
    </style>
</head>

<body>
    <div class="box1">text-shadow</div>
</body>

</html>